ISEE Word Problems Question 12: Answer and Explanation
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Question: 12
12. Colleen is 14 years old. She babysits for $4.50 an hour. Yesterday she baby-sat for 3 hours. Which shows how much she earned?
- A. 14 × $4.50
- B. 2 × 3
- C. 3
× $4.50
- D. (3
× 2) × $4.50
Correct Answer: C
Explanation:
The correct answer is (C). Three numbers are given in this problem, but only two are necessary to solve the problem: the charge per hour and the number of hours Colleen babysat. $4.50 per hour × 3 hours = $4.50 × 3